SigmaHQ/rules/windows/powershell/powershell_create_local_user.yml

title: PowerShell Create Local User
id: 243de76f-4725-4f2e-8225-a8a69b15ad61
status: experimental
description: Detects creation of a local user via PowerShell
references:
    - https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1136/T1136.md
tags:
    - attack.execution
    - attack.t1059.001
    - attack.t1086  # an old one
    - attack.persistence
    - attack.t1136.001
    - attack.t1136  # an old one    
author: '@ROxPinTeddy'
date: 2020/04/11
modified: 2021/08/04
logsource:
    product: windows
    service: powershell
    definition: Script block logging must be enabled
detection:
    selection:
        EventID: 4104
        ScriptBlockText|contains: 'New-LocalUser'
    condition: selection
falsepositives:
    - Legitimate user creation
level: medium